Finding the Fourth Proportional to 117,916.68, 162,721.26 and 70,159.08
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Solution
The fourth proportional to 117,916.68, 162,721.26 and 70,159.08 is: 96,817.29
Step by Step Solution
- Step 1: Write the proportion equation
117,916.68 : 162,721.26 = 70,159.08 : x - Step 2: Convert to fraction form
117,916.68/162,721.26 = 70,159.08/x - Step 3: Cross multiply
117,916.68x = 162,721.26 × 70,159.08 - Step 4: Simplify right side
117,916.68x = 11,416,373,898.04 - Step 5: Solve for x
x = 11,416,373,898.04/117,916.68 - Step 6: Final answer
x = 96,817.29
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.